EP1499171B1 - Device for inserting, extracting a plug-in unit in a bay - Google Patents

Description

The invention relates to a plug-in module for insertion and removal in or from a rack having at least one front stop edge. The plug-in module comprises a lever pull handle which is pivotally mounted in the front region of the plug-in module and has a handle arm and a lever arm.

Plug-in modules have at their rear end to a multi-pin connector, which is plugged into a corresponding connector strip on the backplane wiring board of the rack. To produce as well as to solve the connector large forces are applied. For this purpose, the plug-in modules generally comprise in their front region a lower and an upper lever pull handle, with which the plug-in modules can be levered into the rack or levered out of the rack. At the beginning of levering, the lever handles must be fully swung out. The upper lever pull handle poses the problem that the long lever arm, the is designed as a handle arm, due to gravity falls down, causing the lever pull handle unintentionally pivoted downwards. Thus, the lever pull handle obstructs the insertion of the plug-in module; a complete insertion of the plug-in module in the rack is not possible in this position of the lever pull handle. The operator of the plug-in module must engage here manually to bring the lever pull handle in the appropriate position and can only then start levering.

Some lever pull handles are known in the art which can be latched or locked in an end position.

From DE 41 05 948 C2 an assembly unit with a lever for inserting the assembly in a receptacle is known. On a long lever arm of the lever, a handle lever is pivotally mounted. A resilient latching means locks the lever when fully inserted module. The locking is achieved by pivoting the handle lever. The locking means is adapted to lock the lever in its pivoted position. A fixing of the lever in its fully pivoted end position, however, is not provided and can not be made by the proposed locking means.

From EP 0 832 547 B1 a front system of a printed circuit board with a corner piece is known, on which a lever pull handle is attached. This has means for fixing the lever pull handle. However, the lever pull handle can only be fixed in its fully inserted into the rack printed circuit board in its corresponding end position. There are no means shown to fix the lever handle even in the swung-out state.

From US 5,140,501 a lever pull handle is known which can be locked in an end position.

Moreover, in the state of the art, lever pull handles are known, which are held in the pivoted-out position by means of an integrated spring. In practice, however, such springs have proven to be unsuitable as they become over-stretched and soft over time. Reliable holding the lever pull handle is then no longer guaranteed. When inserting the plug-in module into the rack, the lever pull handle must be manually operated to overcome the spring force. Often, however, the spring force is overcome by the user uncontrolled and swung the lever handle too early. The lever pull handle then locks the plug-in module against insertion. A complete insertion of the plug-in module in the rack is possible only after renewed swinging the lever pull handle, against the force of the spring.

It therefore raises the task of creating a plug-in module, the lever pull handle is reliably fixed in the fully extended position with simple mechanical means, this fixation when inserting the plug-in module in the rack should be as simple and comfortable as possible.

In the solution of the problem is assumed by a plug-in module for insertion and removal in or out of a rack having at least one front stop edge. The plug-in module comprises a lever pull handle which is pivotally mounted in the front region of the plug-in module and has a handle arm and a lever arm.

The object is achieved according to the invention by a locking lever rotatably hinged to the handle arm of the lever pull handle, which carries a resilient locking tongue, and a corresponding locking contour provided in the front region of the plug-in module, wherein the locking tongue engages behind the locking contour when the lever pull handle is fully swiveled out and thereby locks the lever pull handle against pivoting. Once the lever pull handle is completely swung out, especially when levering out the plug-in module from the rack, the locking tongue engages behind the corresponding locking contour automatically without manual intervention of the user. The automatic locking is effected by the resilient design of the locking tongue. The locking tongue is held by the locking contour, so that the lever pull handle can no longer pivot until the lock is released. Thus, the lever pull handle is automatically in the starting position at which the plug-in module can be freely inserted into the rack. The user does not have to manually fix the lever pull handle when levering. The levering can therefore not be hindered by a lever located in the wrong position grip. This proves to be advantageous especially for the upper lever pull handle, as he would otherwise be pivoted downwards solely by gravity and lock the plug-in module against being levered.

In a preferred embodiment, the locking lever comprises a latch, which is suitable for locking the fully pivoted-lever pull handle, and to which the locking tongue is attached. The latch serves to fix the fully pivoted lever pull handle in its corresponding end position. This is desirable especially when fully inserted into the rack plug-in modules to prevent inadvertent levering out of the plug-in module. In terms of design and manufacture, it is advantageous if the locking tongue is arranged on the latching pawl. Both elements for fixing the lever pull handle then form a unit.

Advantageously, the latch has a latching lug, which can be latched behind a latching edge in the front region of the plug-in module. The locking of the locking lever causes inadvertent or automatic movement of the locking lever is excluded. The lever pull handle is thus locked against pivoting when completely plugged plug-in module. Pulling out the plug-in module from the rack is possible only after releasing the locking and unlocking the lever pull handle. The latching is solved by the latching nose being moved behind the latching edge. The locking edge in the front region of the plug-in module can be arranged on a printed circuit board or on a separate corner piece.

Preferably, the plug-in module has a front plate with a recess. The recess of the front panel then forms the locking edge. Through the recess through the latch engages. The latch can then engage behind the locking edge. As soon as the latch engages through the recess of the front panel, the recess is closed to a large extent. Thus, an important function of the front panel is maintained, namely the protection of lying behind the front panel components from damage and dirt. The front panel may additionally have additional recesses at its lower end, which cut out and reshape the lower portion of the lever pull handle. Thus, a nearly complete completion of the plug-in module can be ensured by the front panel.

In a particularly advantageous embodiment of the plug-in module actuates the latch when completely plugged plug-in module a switch for active-passive circuit of the plug-in module. In addition to locking the lever pull handle if the plug-in module is completely plugged in and the lever-pull handle is fully swiveled in, the plug-in module can be activated or switched by pressing a switch. This is particularly important in computer systems so that only de-energized plug-in modules are pushed out of the rack or in the rack. Only after complete insertion of the plug-in module is this active. This reliably prevents faults in the internal bus system. Since the pawl makes the operation of the switch, the switching of the plug-in module with the locking of the locking lever and the lever handle is coupled. It is therefore impossible to remove a non-passively plug-in module from the rack, since simultaneously with the unlocking the switch is also activated for active-passive circuit. In order to ensure optimum and reliable switching of the plug-in module, the shape of the pawl can be adapted to the switch, for example by forming a button or a switching cam at the free end of the latch.

In a further advantageous embodiment of the plug-in module according to the invention, an actuating element acts on the locking tongue. The actuator cooperates with the front stop edge of the rack in such a way that when inserting the plug-in module, the lever pull handle is automatically unlocked. As soon as the actuating element comes into contact with the stop edge when inserting the plug-in module into the rack, it presses on the locking tongue, which thereby releases from the blocking contour and releases the lever pull handle. Thus, the fixed in its swung-out end position lever handle is unlocked, so that the insertion is not hindered by the swung-out lever handle. The automatic unlocking of the lever pull handle in its fully pivoted position is made when inserting the plug-in module without manual intervention of the user. The handling for the user is thereby optimized.

The actuating element may advantageously be designed as an extension of the locking tongue and bear against the lever arm of the lever pull handle under bias. The locking tongue is designed such that it automatically engages behind the locking contour upon reaching the pivoted end position. By biasing the locking of the lever pull handle is now supported in the swung-out end position. The bias also further supports the locking of the complete pivoted lever pull handle with inserted plug-in module by the locking lug is resiliently pulled against the locking edge. To release the latch must, as well as to unlock in the pivoted position of the lever handle, the bias of the actuator to be overcome. An accidental release of the lock as well as the locking of the lever pull handle is excluded.

Preferably, the actuating element is mounted longitudinally displaceable on the lever arm. Thus, an effective effect is realized in space-saving arrangement, in which the actuator must be moved only over a short distance. The longitudinally displaceable mounted actuator unfolds especially when unlocking, that is, when the locking tongue with the locking contour is disengaged, a good force and transmission. The longitudinal displacement of the actuating element is thereby converted into a rotation of the locking lever with respect to the lever pulling handle.

Particularly preferably, the locking lever on an actuating arm. The actuating arm allows the user to manually move the locking lever and thereby unlock the fully pivoted lever pull handle or to release the pivoted lever pull handle from its catch. In addition to the unlocking of the lever pull handle, the actuating arm has the further function of tackling the lever pull handle.

In a particularly advantageous embodiment, the actuating arm has a U-shaped cross section, between the U-legs of the handle arm of the lever pull handle is einschwenkbar. The U-shaped actuating arm then partially surrounds the handle arm of the lever pull handle and guides it between its two U-legs. As a result, the mobility of the locking lever is limited to the preferred direction. The stability of the locking lever against lateral forces is increased. A rotation of the locking lever against the lever pull handle is prevented by the U-shaped guide. The handling for the user is optimized. The U-shaped actuating arm is significantly wider than the lever pull handle. The manual operation of the actuating arm by the user is thereby more comfortable.

Alternatively, the handle arm of the lever pull handle could be U-shaped. The actuating arm would then be guided between the U-legs of the lever pull handle. In such an embodiment, the actuating arm of the locking lever could additionally be T-shaped, so that then the T-back provided a wide support surface for comfortable operation by the user.

The U-back of the actuating arm is suitably aligned with the plug-in module, whereby the ease of use of the lever is improved. In operation, the user presses the actuating arm of the locking lever against the handle arm of the lever pull handle. When fully inserted into the rack plug-in module causes this relative movement of the locking lever releasing the locking of the lever pull handle. Once the actuating arm of the locking lever rests on the handle arm of the lever pull handle, the force exerted on the actuating arm is transmitted directly to the handle arm of the lever pull handle, and the pivotal movement of the lever pull handle and thus the levering of the plug-in module from the rack begins.

Preferably, the plug-in module has a front plate, which comprises an angled, substantially planar side part. The corner region of the side part may be formed as a locking contour. That's easy to make. In addition, such a realized locking contour proves to be extremely stable, especially if the front panel is made of metal. Wear due to abrasion or kinking of the locking contour is then excluded. A particularly good effect when locking the lever pull handle unfolds arranged on the side part locking contour when the side part also carries the bearing for the lever pull handle. Then a direct interaction between the locking tongue, which is arranged on the lever pull handle and thus also mounted on the side part, and the locking contour ensured. Locking tongue and locking contour can be matched to each other very accurately and without much game. Low tolerances are possible. This ensures a smooth interaction of the moving parts.

In an advantageous embodiment, a special corner piece is provided in the corner region of the front plate, on which the lever pull handle is pivotally mounted and on which the locking contour is formed. The corner piece is as a separate part educated. It can be made of a different material than the front panel of the plug-in module. Advantageously, such a separate corner piece especially when other levers are used or special levers to be retrofitted. Since always both the lever pull handle and the locking contour are arranged on the corner piece, a very direct action takes place between the two, which ensures a reliable locking of the lever pull handle.

Figuren 1a bis 1e

den vorderen Bereich einer Steckbaugruppe mit einem Hebelziehgriff und daran angelenktem Sperrhebel, in unterschiedlichen Stellungen beim Herausziehen der Steckbaugruppe aus einem Baugruppenträger, jeweils als seitliches Schnittbild;

Figuren 2a bis 2e

den vorderen Eckbereich der Steckbaugruppe, in unterschiedlichen Stellungen beim Hineinhebeln der Steckbaugruppe in den Baugruppenträger, jeweils als Schnittbild;

Figur 3

eine perspektivische Darstellung des Sperrhebels aus Figur 1a;

Figur 4

eine perspektivische Darstellung des Hebelziehgriffs aus Figur 1a;

Figuren 5a und 5b

eine perspektivische Darstellung des vorderen Eckbereichs der Steckbaugruppe aus Figur 1a;

Figur 6a

das untere Ende der Frontplatte der Steckbaugruppe aus Figur 5a, in perspektivischer Darstellung von innen;

Figur 6b

die Frontplatte von Fig. 6a, von außen;

Figuren 7a und 7b

eine alternative Ausführungsform des unteren Eckbereichs einer Steckbaugruppe mit einer Frontplatte und einem Eckstück, in perspektivischer Darstellung ;

Figuren 8a und 8b

die Frontplatte aus Figur 7a allein;

Figuren 9a und 9b

das Eckstück aus Figur 7a, allein.

An embodiment of the invention will be explained below with reference to the accompanying drawings. Show it:

FIGS. 1a to 1e

the front portion of a plug-in module with a lever pull handle and locking lever hinged thereto, in different positions when pulling out the plug-in module from a rack, in each case as a sectional side view;

FIGS. 2a to 2e

the front corner of the plug-in module, in different positions when levering the plug-in module into the rack, in each case as a sectional view;

FIG. 3

a perspective view of the locking lever of Figure 1a;

FIG. 4

a perspective view of the lever pull handle of Figure 1a;

FIGS. 5a and 5b

a perspective view of the front corner region of the plug-in module of Figure 1a;

FIG. 6a

the lower end of the front panel of the plug-in module of Figure 5a, in perspective view from the inside;

FIG. 6b

the front panel of Fig. 6a, from the outside;

FIGS. 7a and 7b

an alternative embodiment of the lower corner region of a plug-in module with a front plate and a corner piece, in perspective view;

FIGS. 8a and 8b

the front panel of Figure 7a alone;

FIGS. 9a and 9b

the corner piece of Figure 7a, alone.

Figures 1a to 1d illustrate the process of extracting a plug-in module 1 from a rack. From the rack, only the lower front stop edge 2 can be seen, which is formed for example by a rail or module rail.

Figure 1a shows the plug-in module 1 in fully inserted into the rack position. The plug-in module 1 comprises a printed circuit board 3, a front plate 4 with angled side part 5a and a lever pull handle 6 rotatably mounted in the front region of the plug-in module 1. The lever pull handle 6 has a long, upwardly extended handle arm 7 and a shorter lever arm 8.

On the handle arm 7, a locking lever 9 is rotatably articulated. The locking lever 9 comprises an actuating arm 10 and a latch 11, which is arranged approximately at a 90-degree angle to the actuating arm 10. At the latch 11 a latch 12 is formed. Furthermore, a locking tongue 13 is attached to the latch 11, which extends approximately parallel to the front panel 4 down. When completely plugged into the rack plug-in module 1, the latch 11 protrudes through a recess 14 of the front panel 4 and actuates a arranged behind the front panel 4 switch 15 for active-passive circuit of the plug-in module 1 arranged electronic circuit. The locking lug 12 of the latch 11 engages behind a locking edge 16 of the recess 14th

As an extension of the locking tongue 13, an actuating element 17 is formed, which is similar to a runner and extends downwards. The free end of the actuating element 17 projects beyond the lever arm 8 downwards.

The lever arm 8 comprises a spur 18 which is complete with the stop edge 2 in the rack inserted plug-in module 1 is engaged, and a Abdrückschulter 19, which has a Abdrückfläche 20 on its outer side. At the Abdrückfläche 20, the actuating element 17 is under prestress.

The side part 5a of the front panel 4 has at its lower end a locking contour 21, which projects beyond the side part 5a to the front.

In Figure 1b, the beginning of the extraction of the plug-in module 1 is shown from the rack. The locking lever 9 is pivoted such that the actuating arm 10 rests on the handle arm 7. As a result, the free end of the latch 11 is raised. The locking lug 12 releases from the locking edge 16, whereby the locking of the locking lever 9 and thus the locking of the lever pull handle 6 is released. At the same time, the switch 15 is released, so that the plug-in module 1 is switched to passive. The movement of the latch 11 has the consequence that the locking tongue 13 is moved along the front panel 4 upwards.

The unlocked lever pull handle 6 can now be swung out in the direction of the arrow, whereby the plug-in module 1 is levered out of the rack (Figure 1c). The spur 18 engages an inner leg 23 of the stop edge 2. During the pivoting of the lever pull handle 6, the actuating element 17 abuts against a corner 24 of the locking contour 21 and slides along it.

In Figure 1d, the lever pull handle 6 is fully swung out. The Abdrückschulter 19 is now on the outer leg 22 of the stop edge 2 at.

Since the actuating arm 10 of the locking lever 9 presses against the handle arm 7 of the lever pull handle 6, the locking tongue 13 is displaced in the direction of the locking element 11, so that it is no longer in engagement with the locking contour 21.

If now, after the prying out of the plug-in module 1 from the rack, the actuating arm 10 is released by the user, the locking lever 9 rotates back to its rest position on the lever pull handle 6. At the end, the locking tongue 13 engages behind the locking contour 21, whereby the lever pull handle 6 against pivoting is locked. This position of the plug-in module 1 is shown in Figure 1e. It is also the starting position from which the plug-in module 1 can be levered back into the rack.

For levering the plug-in module 1, this is first pushed into the rack so far until the actuator 17 abuts the outer leg 22 of the stop edge 2 of the rack. The further insertion of the plug-in module 1 according to Figure 2a has the consequence that the actuating element 17 is pressed in the direction of arrow 25. The locking tongue 13 is thereby pushed along the locking contour 21 until the locking tongue 13 and the locking contour 21 are disengaged. The lever pull handle 6 is thus unlocked and can be pivoted upwards in the direction of the front panel 4 out to lever the plug-in module 1.

2b shows the partially inserted plug-in module 1 with partially pivoted lever pull handle 6. The lever pull handle 6 is pivoted so far that the Abdrückschulter 19 comes into engagement with the outer leg 22 of the stop edge 2. The locking lever 9 has returned by its resilient bias to its rest position.

In Figure 2c, the lever pull handle 6 is pivoted so far that now the spur 18 acts on the inside of the outer leg 22, so that the plug-in module 1 can be levered into the rack. The latch 11 already engages a piece in the recess 14 of the front panel 4; However, the locking lug 12 is still outside the front panel. 4

Upon further pivoting of the lever pull handle 6, as shown in Figure 2d, the locking lug 12 sets on the locking edge 16 of the front panel 4, whereby the actuating arm 10 of the locking lever 9 is rotated in the direction of the handle arm 7 of the lever handle 6.

When completely plugged into the rack plug-in module 1, as seen in Figure 2e, the locking lug 12 is engaged behind the locking edge 16. The latch 11 presses with its free end on the switch 15, whereby the plug-in module 1 is activated. The snapping of the locking lug 12 behind the locking edge 16 causes a quick rotation of the locking lever 9 back in its rest position, in which the actuating arm 10 protrudes from the handle arm 7. The plug-in module 1 is now completely inserted into the rack.

FIG. 3 shows the locking lever 9 in detail. In this embodiment, the locking tongue 13 is not disposed directly on the latch 11, but at the lower end of the actuating arm 10. The actuating arm 10 is formed in cross-section U-shaped. Between its two U-legs, the gripping arm 7 of the lever-pulling handle 6 (see Fig. 4) can be pivoted. At the locking tongue 13, the actuating element 17 is formed as an extension. The actuating element 17 has a recess 26 through which the lever pull handle 6 can partially reach. The U-back of the actuating arm 10 is significantly wider than the handle arm 7 of the lever pull handle 6.

The lever pull handle 6 is drawn out in FIG. It has approximately in the middle of its handle arm 7 has a bore 27 which corresponds to the holes in the U-legs of the actuating arm 10 of the locking lever 9 (see Fig .. 3) and forms a pivot bearing with these, so that the locking lever 9 the lever pull handle 6 is pivotally mounted. The lever arm 8 with the spur 18 and the Abdrückschulter 19 also has a bearing bore 28 which forms the pivot bearing for pivoting the lever pull handle 6 itself. Below the bearing bore 28, a shoulder 29 is arranged, which causes a limitation of the rotational movement of the lever handle 6 together with a stop.

In FIG. 5a, the front plate 4 with its two side parts 5a, 5b can be seen from the inside, ie from the plug-in module 1, namely with the lever pull handle 6 fully swiveled in. Through the recess 14, the latch 11 engages. The latching lug 12 of the latch 11 is latched behind the latching edge 16. At the lower end of the side part 5 a of the lever pull handle 6 is rotatably mounted. Also in the lower region of the side part 5a, a stop 30 is formed. When completely pivoted lever pull handle 6 limits the stop 30 together with the paragraph 29, the rotation angle of the lever pull handle 6 and thus determines its maximum pivoted position.

Figure 5b shows the front panel 4 from the outside, with the lever pull handle 6 and the locking lever mounted thereon 9. The actuating arm 10 of the locking lever 9 engages with its U-legs the handle arm 7 of the lever pull handle 6. The latch 11 engages through the recess 14 of the front panel 4 therethrough. The lever pull handle 6 engages through the recess 26 of the actuating element 17 therethrough.

In Figure 6a, the front panel 4 can be seen from the inside, without lever handle. At the lower end of the side part 5a, a flange 31 is arranged, which receives the lever pull handle. The flange 31 carries a (not shown) internal thread, so that the lever pull handle can be secured by a screw. In addition, the printed circuit board of the plug-in module is fastened to the flange 31. With the flange 31 a bore 32 in the side part 5b of the front plate 4 is aligned, so that a screwdriver passed through the bore 32 and a screw can be screwed into the flange 31.

In Figure 6b, the front panel 4 is shown from the front. At the lower end of the side part 5a, the locking contour 21 is formed. It protrudes over the front panel 4 forward. At the rear edge of the side part 5a of the stop 30 can be seen, which is directed inwards. This thus formed front panel 4 with the side parts 5a, 5b and the locking contour 21 can be produced in one piece by punching and bending the side parts 5a, 5b.

An alternative embodiment of the front panel 4 is shown in Figure 7a. In the lower region of the front plate 4, a corner piece 33 is mounted with a screw 34 on the front panel 4. The corner piece 33 is arranged in extension of the side part 5a.

The inside of the front panel 4 according to FIG. 7a can be seen in FIG. 7b. The front plate 4 has a 90 degree inwardly angled receiving plate 35. The receiving plate 35 has a bore 36 which is formed by a collar 37. The bore 36 carries a (not shown) internal thread into which the screw for holding the corner piece 33 is screwed. The corner piece 33 surrounds the lever arm 8 of the lever pull handle 6. The bearing bore 28 in the lever arm 8 is aligned with the bore 36 of the receiving plate 35. The corner piece 33 and the lever arm 8 are spaced from the receiving plate 35, so that inserted into the intermediate space, the circuit board of the plug-in module can be. The circuit board is then also held with the screw for holding the corner piece 33.

In FIG. 8a, the front plate 4 according to FIG. 7a is shown alone. The side part 5a is shortened by the height of the receiving plate 35 and thus provides space for receiving the corner piece. The interior view is shown in FIG. 8b. The receiving plate 35 projects perpendicularly inwards and is aligned parallel to the side parts 5a, 5b.

The corner piece 33 is shown in a perspective view in FIGS. 9a and 9b. A bore 38 is arranged on the longitudinal side of the corner piece 33. The bore 38 pierces a sleeve 39 on the inside of the corner piece 33. The sleeve 39 serves to receive the lever pull handle, which is guided in a groove 40. At the front upper corner of the corner piece 33, a stopper 41 is formed, which limits the maximum angle of rotation of the lever pull handle.

Compilation of the reference numerals

1

plug-in module

2

stop edge

3

circuit board

4

front panel

5a, 5b

Side parts (of 4)

6

Pulling lever

7

Handle arm (from 6)

8th

Lever arm (from 6)

9

locking lever

10

Operating arm (of 9)

11

Latch (at 9)

12

Latch (on 9)

13

Locking tongue (at 11)

14

Recess (in 4)

15

switch

16

catch edge

17

actuator

18

spur

19

thrust shoulder

20

ejector surface

21

locking contour

22

Outer thighs (of 2)

23

Inner thighs (of 2)

24

Corner (from 21)

25

arrow

26

recess

27

Bore (in 6)

28

Bearing bore (in 6)

29

paragraph

30

attack

31

flange

32

Bore (in 5b)

33

corner

34

screw

35

Support panel

36

Bore (in 35)

37

collar

38

drilling

39

shell

40

groove

41

stopper

Claims (12)

1. Plug-in assembly (1) for insertion into and/or withdrawal from an assembly support which has at least one front stop edge (2), with a pulling lever which is pivotably mounted in the front region of the plug-in assembly and has a gripping arm (7) and a lever arm (8),
   characterised in that

   - a locking lever (9) is rotatably articulated on the gripping arm (7) of the pulling lever (6);

   - the locking lever (9) bears a resilient locking tab (13);

   - a corresponding locking contour (21) is provided in the front region of the plug-in assembly; and

   - the locking tab (13) engages behind the locking contour (21) when the pulling lever (6) is completely pivoted out and thereby locks the pulling lever (6) against pivoting.
2. Plug-in assembly as claimed in Claim 1, characterised in that

   - the locking lever (9) comprises a detent (11) which serves for latching the pulling lever (9) when it is completely pivoted in; and

   - the locking tab (13) is attached to the detent (11).
3. Plug-in assembly as claimed in Claim 2, characterised in that the detent (11) has a detent lug (12) which can engage behind a detent edge (16) in the front region of the plug-in assembly (1).
4. Plug-in assembly as claimed in Claim 3, characterised by a front plate (4) with a recess (14) which forms the detent edge (16) and through which the detent (11) engages.
5. Plug-in assembly as claimed in any one of Claims 2 to 4, characterised in that when the plug-in assembly (1) is completely inserted the detent (11) actuates a switch (15) for the active/passive switching of the plug-in assembly (1).
6. Plug-in assembly as claimed in any one of Claims 1 to 5, characterised in that the locking tab (13) is acted upon by an actuating element (17) which co-operates with the front stop edge (2) of the assembly support in such a way that that the pulling lever (6) is automatically unlocked during the insertion of the plug-in assembly (1).
7. Plug-in assembly as claimed in Claim 6, characterised in that the actuating element (17) is constructed as an extension of the locking tab (13) and rests under pretension against the lever arm (8) of the pulling lever (6).
8. Plug-in assembly as claimed in Claim 6 or 7, characterised in that the actuating element (17) is mounted on the lever arm (8) so as to be longitudinally displaceable.
9. Plug-in assembly as claimed in any one of Claims 1 to 8, characterised in that the locking lever (9) comprises an actuating arm (10).
10. Plug-in assembly as claimed in Claim 9, characterised in that the actuating arm (10) has a U-shaped cross-section and that the gripping arm (7) of the pulling lever (6) can be pivoted in between the legs of the U.
11. Plug-in assembly as claimed in any one of Claims 1 to 10, characterised in that a front plate (4) comprises an angled substantially level side part (5a), the corner region of which is constructed as a locking contour (21).
12. Plug-in assembly as claimed in any one of Claims 1 to 10, characterised in that in the corner region of a front plate (4) a corner piece (33) is provided on which the pulling lever (6) is pivotably mounted and on which the locking contour (21) is formed.

Images